Create missing rules for deprecated jQuery features

[edg2s]

Listed as "FIXME" in index.js:

• $.fx.interval
• $(...).context
• $.support
• deferred.pipe()
• $(...).error()
• $(...).load(fn) (excluding $(...).load(url,...))
• $(...).toggle(fn,fn) (excluding https://api.jquery.com/toggle/)
• $(...).unload()
• deferred.isRejected()/isResolved()
• $.sub()
• $(...).selector
• $.boxModel
• $.browser

Update from #52 and https://api.jquery.com/ready/:

• $(...).ready() (3.0)
• $(document).on( "ready", handler ) (1.8)

[edg2s]

deferred.isRejected()/isResolved()

The only way to do this one is assume that in anyVariable.isRejected() the variable is a jQuery deferred. These names are somewhat unique, so a collision with a local method seems less likely. Projects that did have a local method with this name would probably have to disable the rule.

deferred.pipe on the other hand might be too common of a name.

[edg2s]

@Krinkle can you explain the difference between things that have been added to deprecated.js (https://github.com/jquery/jquery/commits/master/test/unit/deprecated.js), and things that are actually listed as deprecated in the docs, for example $.isArray was deprecated in 2016, but isn't listed as such anywhere.

[Krinkle]

@edg2s The only difference is time and effort spent to date :) - This has been fixed meanwhile (ref jquery/api.jquery.com#950).